The Dragon's Eye
You must search the world for a being capable of restoring the power to the Fragment of the Dragon's Eye. The only information you possess about such a being is that they exist.
Fragment of the Dragon's EyeDescription
A fragment of the shattered medallion is all that I can offer.
You must find another of dragon blood willing to assist you in forging a new key. Once you secure this key, you must travel to the Wyrmbog in Dustwallow Marsh. It is there that you will find her lair, <name>.
Where to find other flights willing to help? Sadly, I do not know... They are said to exist. Some may even work and live among us, disguised as one of the humanoid races. I wish you luck.
Progress
I sense an aura of evil radiating from you, <race>. What could you hold that emits such an aura?
Completion
I should have known - a piece of the black dragon brood mother, Onyxia. How revolting...